157139840

Names of 157139840

• Cardinal: 157139840 can be written as One hundred fifty-seven million, one hundred thirty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.5713984 × 10⁸

Factors of 157139840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 149

Divisors of 157139840

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 17 20 22 26 32 34 40 44 52 55 64 65 68 80 85 88 101 104 110 128 130 136 143 160 170 176 187 202 208 220 221 260 272 286 320 340 352 374 404 416 440 442 505 520 544 572 640 680 704 715 748 808 832 880 884 935 1010 1040 1088 1105 1111 1144 1313 1360 1408 1430 1496 1616 1664 1717 1760 1768 1870 2020 2080 2176 2210 2222 2288 2431 2626 2720 2860 2992 3232 3434 3520 3536 3740 4040 4160 4420 4444 4576 4862 5252 5440 5555 5720 5984 6464 6565 6868 7040 7072 7480 8080 8320 8585 8840 8888 9152 9724 10504 10880 11110 11440 11968 12155 12928 13130 13736 14144 14443 14960 16160 17170 17680 17776 18304 18887 19448 21008 22220 22321 22880 23936 24310 26260 27472 28288 28886 29920 32320 34340 35360 35552 37774 38896 42016 44440 44642 45760 48620 52520 54944 57772 59840 64640 68680 70720 71104 72215 75548 77792 84032 88880 89284 91520 94435 97240 105040 109888 111605 115544 119680 137360 141440 142208 144430 151096 155584 168064 177760 178568 188870 194480 210080 219776 223210 231088 245531 274720 288860 302192 311168 355520 357136 377740 388960 420160 446420 462176 491062 549440 577720 604384 711040 714272 755480 777920 840320 892840 924352 982124 1098880 1155440 1208768 1227655 1428544 1510960 1555840 1785680 1848704 1964248 2310880 2417536 2455310 2857088 3021920 3571360 3928496 4621760 4910620 6043840 7142720 7856992 9243520 9821240 12087680 14285440 15713984 19642480 31427968 39284960 78569920 157139840
• Sum of all divisors σ(n): 471925440
• Sum of proper divisors (its aliquot sum) s(n): 314785600
• 157139840 is an abundant number, because the sum of its proper divisors (314785600) is greater than itself. Its abundance is 157645760

Bases of 157139840

• Binary: 1001010111011100001110000000₂
• Hexadecimal: 0x95DC380
• Base-36: 2LK1VK

Squares and roots of 157139840

• 157139840 squared (157139840²) is 24692929315225600
• 157139840 cubed (157139840³) is 3880242961725860347904000
• The square root of 157139840 is 12535.5430676139
• The cube root of 157139840 is 539.6291921621

Scales and comparisons

• 157,139,840 seconds is equal to 4 years, 51 weeks, 5 days, 17 hours, 57 minutes, 20 seconds.
• To count from 1 to 157,139,840 would take you about seven years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 157139840 cubic inches would be around 45 feet tall.

Recreational maths with 157139840

• 157139840 backwards is 048931751
• The number of decimal digits it has is: 9
• The sum of 157139840's digits is 38
• More coming soon!